Bullnose Enthusiasts Forum

Coil spring insulator

Classic

List

Threaded

9 messages Options

BeagleRock

Coil spring insulator

Are they necessary? Will I get occasional clunks if left off. Mine were rotten and I don't know of any place that I can get a couple. RockAuto doesn't even list them thus my question of their importance.

Beaglerock/83f150 351W C6 Transmission 2 wheel drive.

Angelo Voltura

Re: Coil spring insulator

https://shop.broncograveyard.com/1980-1989-Ford-Bronco-F-Series-Coil-Spring-Insulator/productinfo/33204/

1978 F150 351W
1979 F150 "410M"
1979 F100 302
1979 F250 400
1987 F150 300
1990 F150 302
1991 F150 300
1995 F150 (1985 clip swapped) 300
1997 F250 351W

BeagleRock

Re: Coil spring insulator

Thanks Angelo, the question remains as to if they're necessary. I would think they would be but moog and other companies I've searched do not list them.

Beaglerock/83f150 351W C6 Transmission 2 wheel drive.

Rembrant

Re: Coil spring insulator

In reply to this post by BeagleRock

I installed a set from LMC and they fit nicely. Whether they are needed or not I don’t know, but I’d prefer them to be there personally.

1994 F150 4x2 Flareside. 5.0 w/MAF, 4R70W, stock.
1984 F150 4X2 Flareside. Mild 302 w/ 5spd. Sold.
1980 F150 4X4 Flareside. 300i6 w/ 5spd. Sold in 2021.
1980 F100 4X2 Flareside. 351w/2bbl w/NP435. Sold in 1995

Angelo Voltura

Re: Coil spring insulator

In reply to this post by BeagleRock

BeagleRock wrote

Thanks Angelo, the question remains as to if they're necessary. I would think they would be but moog and other companies I've searched do not list them.

They are a cushion for the spring to eliminate squeeking and shaking and to dampen vibrations. You can get away without them, but your ride quality and steering stability will suffer as having them removed with transmit vibrations directly to the steering wheel.

1978 F150 351W
1979 F150 "410M"
1979 F100 302
1979 F250 400
1987 F150 300
1990 F150 302
1991 F150 300
1995 F150 (1985 clip swapped) 300
1997 F250 351W

BeagleRock

Re: Coil spring insulator

Agreed.

Beaglerock/83f150 351W C6 Transmission 2 wheel drive.

BeagleRock

Re: Coil spring insulator

In reply to this post by Rembrant

Yeah I'm thinking I want them since I went to all the trouble of replacing tie-rods, Balljoints and axle pivot bushings. Oh and brakes and brake hoses. Might as well do it all!

Beaglerock/83f150 351W C6 Transmission 2 wheel drive.

NZCOBRA

Re: Coil spring insulator

Industrial conveyor belt with rayon , but at $ 6 why bother.

1986 F150 Lariat Supercab 302 efi , soon to have a 385 ci w , forged crank,king bearings , crower billet rods, Auto tech forged pistons world products Snr heads , Comp retro fit 35-421-8 HR, steel roller lifters , Milodon single idle gear drive , Mallory dual sync dissy ,Motec ECU , Profesional products intake , 75 mm TB , 40lb EV1 , Doug thorly Tri-y long tubes , Block 1974 with 1990 serpentine front drive and new Motorcraft A/C pump , will put 3G alternator on it , ford racing diff cover and have a new track-loc , to fit . I have converted it to a 5 speed Tremec TR4250 as the AOD died .

Rembrant

Re: Coil spring insulator

In reply to this post by BeagleRock

BeagleRock wrote

Yeah I'm thinking I want them since I went to all the trouble of replacing tie-rods, Balljoints and axle pivot bushings. Oh and brakes and brake hoses. Might as well do it all!

I was the same. I did redid the entire front end in one full sweep, and my 30+ year old isolators were looking pretty tired.